Functional Diagnostic Nutrition For Optimal Wellness: Discover The Benefits Of FDN For Your Health

 by Dr. Steve Hruby
Reviewed by Dr. Steve Hruby

I am a chiropractor, father, husband, coach, entrepreneur, and motivational speaker. Feeling good about yourself is a choice: My mission is to transform lives through optimized health and overall well-being.

  Fact Checked
 by Rhealyn Tropia, RMT
Reviewed by Rhealyn Tropia, RMT

I’ve been called a Data Ninja, The Fact Checker, and a Human Search Engine. I’m an indie content curator who does research daily, and quizzes myself on the important issues of the day.

Functional Diagnostic Nutrition for Optimal Wellness

Every person is a unique expression of nature. As such, every individual needs a personalized, tailored approach to achieving one’s optimal health. Functional Diagnostic Nutrition (FDN) is a modern dietary therapy used to find and remove food sensitivities and hidden toxins that cause inflammation, disease and chronic disorders.

What is Functional Diagnostic Nutrition?

Functional Diagnostic Nutrition is a type of nutritional testing that assesses the way your body uses food and supplements to meet its needs. It’s designed to help you understand what’s going on with your body, so you can make better choices about your diet and lifestyle.

This system is based on the idea that your body has different needs for different nutrients, and that these needs depend on where in the body they’re needed. So if you’re having trouble digesting something, or if you have a skin problem, or if you’re having trouble losing weight—these are all things that can be diagnosed with Functional Diagnostic Nutrition.

Who can benefit from FDN?

Functional Diagnostic Nutrition is for everyone, no matter what their health goals are.

People with any kind of chronic illness, including cancer, diabetes, or heart conditions, can benefit from Functional Diagnostic Nutrition. One of the most important things about this diet is that it’s flexible—you can eat food and feel satisfied in a way that’s not restrictive.

Diabetics and people with other types of metabolic disorders (such as an eating disorder) can also use this program to help manage their condition.

If your health goals include losing weight or managing cholesterol levels, you can do so without feeling deprived or on a diet—which makes Functional Diagnostic Nutrition an ideal option for many people who struggle with these issues.

two women stretching

In general, anyone who has had trouble losing weight can consider Functional Diagnostic Nutrition as a potential solution. This program works by helping you consume the correct type and amount of food, while still getting all of the nutrients you need to stay healthy and happy.


Functional diagnostic nutrition tries to improve patients’ overall health by helping them understand what their bodies need in order to function properly. This can be done through testing and analyzing patient’s symptoms, then giving them dietary recommendations based on their results. 

For example, if a patient has kidney problems due to high levels of phosphorus in the blood, a functional diagnostic nutrition practitioner may recommend switching their diet to low-phosphate foods like leafy greens and carrots, instead of foods such that contain high levels of phosphorus.

The intake process is a four-step one: TEST, EDUCATE, RECOMMEND, and FOLLOW-UP.


To begin, a functional laboratory testing is requested. The test kits are provided to your home along with detailed instructions on how to provide biological specimens and return the kit to the lab.


When your test results arrive, a practitioner goes over them with you, to make sure you understand how the results pertain to the symptoms you’re experiencing. The actions required to restore your body to its best state are then discussed.


Behavioral changes such as exercise, rest, and stress-reduction techniques would be recommended to you, as well as dietary advice such as food choices and supplements.


After the test and recommendations provided, a follow up is done to ensure your success. This includes coaching sessions to answer your questions, analyzing your reaction to supplements and behavioral changes, and scheduling follow-up testing to confirm that your health markers are returning to a healthy balance.

doctor consultation

The D.R.E.S.S. Protocol

The D.R.E.S.S. Protocol is an integral part of FND, and is a powerful and time-tested method for achieving and sustaining overall wellness through the five habits towards good health.


There is no such thing as a perfect diet or eating plan that is suitable for everyone. Every individual’s chemistry, metabolism, and sensitivities are particular and taken into account. Dietary suggestions will include avoiding inflammatory foods like sugar, fats, and processed foods, and boosting the consumption of nutrient-dense, organic (where feasible), and chemical-free foods.


Our bodies repair while we sleep. Sleep is essential for both recovery and health maintenance. Rest periods during the day can also help to reduce metabolic chaos, as well as the irregular variations in hormones related to stress and blood sugar.


A lack of everyday activity does harm to our body. Movement is essential for maintaining normal circulation, metabolism, detoxification, and mental sharpness. What is the limit? How much is too much? Your activity and exercise will be fine-tuned to meet your body’s individual needs.


The use of pesticides, preservatives, and improper product storage reduce important vitamins and nutrients in our food. We supplement to make up for what we don’t get enough of to stay healthy.

You may be required therapeutic doses of these, for you to begin to feel better. FDN utilizes only natural, high-quality botanicals to restore the body’s health.

supplements in different colors and shapes


You will collaborate with your practitioner to identify how to minimize metabolic stress on your body from within, as well as to develop strategies to meet and manage the inevitable external stresses of daily life. Stress management strategies are investigated and adjusted, to make you feel more in control and grounded around your overall health.

Answering Your Frequently Asked Questions on FND

Who Can Benefit From FDN?

If you’ve lost your vitality, experienced a decline in what you consider your best self, feel “off” or like you’re falling behind your own expectations of vital health, and have been frustrated by medication use, Functional Diagnostic Nutrition and D.R.E.S.S. for Health may be a path to better health and vitality.

Is functional diagnostic nutrition effective?

Yes, it is a comprehensive, rigorous, and scientific approach to everyday health. Natural methods of healing the body allow it to return to a state of physiological, emotional, and mental balance. 


FDN is holistic nutritional therapy, a comprehensive health modality that goes far beyond a traditional diet. Put another way, it’s a process that looks at all of your material and non-material health factors. FDN addresses the whole you instead of just a few specific parts or symptoms.

Whether you are just beginning to explore healthy nutrition or have had years of experience in the field, FDN can be a valuable resource that empowers you with knowledge and resources to enhance your nutrition efforts.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *